Do low calorie sweeteners disrupt you metabolism? Results from studies have been conflicting. Some findings show that these low calorie sweeteners found in foods and beverages can alter your metabolism and even contribute to the development diabetes and obesity. Other studies have shown these sweeteners don’t affect metabolism and may even contribute to weight loss.
Researchers at Yale University have added insight to these conflicting findings about low calorie sweeteners. Their results were published in the March 3, 2020 edition of the journal Cell Metabolism.
Metabolism Disrupted Only if Carbohydrate Added
According to the Yale researchers, when people consume the low-calorie sweetener sucralose, found in diet sodas, breakfast bars and candy, their metabolism was indeed disrupted — but this occured only if they consumed the sucralose along with a carbohydrate in the form of a tasteless sugar. People who consumed sucralose alone, or who drank beverages with real sugar showed no changes in brain or metabolic response to sugars.
In other words, if a tasteless carbohydrate was added to the drink along with the sucralose, metabolism would be disrupted.
“The subjects had seven low-calorie drinks, each containing the equivalent of two packages of Splenda, over two weeks,” said senior author Dana Small in the news release.
“When the drink was consumed with just the low-calorie sweetener, no changes were observed; however, when this same amount of low-calorie sweetener was consumed with a carbohydrate added to the drink, sugar metabolism and brain response to sugar became impaired,” she said.
The study’s original theory was if people drink or eat sweet foods or beverages with no calories, their body’s response to sugar would diminish. This diminished response could ultimately lead to weight gain, glucose intolerance and diabetes.
The opposite was true in the study’s results. Consuming low-calorie sweeteners with a carbohydrate actually impairs metabolism.
“The bottom line is that, at least in small quantities, individuals can safely drink a diet soda, but they shouldn’t add French fries,” the researchers said.